US-20260129297-A1 - CAMERA MODULE

US20260129297A1US 20260129297 A1US20260129297 A1US 20260129297A1US-20260129297-A1

Abstract

A camera module includes a flexible assembly, a photosensitive module, and a plurality of actuating assemblies. The flexible assembly includes an inner frame, an outer frame, and a plurality of sets of rib assemblies. Each rib assembly is coupled between the inner frame and the outer frame. A middle opening of the photosensitive module corresponding to the inner frame is on the inner frame. The plurality of actuating assemblies are located around the photosensitive module, electrically connected to the flexible assembly, and configured to drive the photosensitive module. Each actuating assembly includes a carrier board, a first electrical pad, and a coil. The carrier board is on the inner frame. The first electrical pad is on the carrier board and is electrically connected to the inner frame. The coil is on the carrier board and is electrically connected to one of the at least one first electrical pad.

Inventors

Shang-Wei Tsai
Kai-Chih Liang

Assignees

Luxvisions Innovation Technology Corp. Limited

Dates

Publication Date: 20260507
Application Date: 20251031
Priority Date: 20241105

Claims (13)

1 . A camera module, comprising: a flexible assembly, comprising an inner frame, an outer frame, and a plurality of sets of rib assemblies, wherein each rib assembly is coupled between the inner frame and the outer frame; a photosensitive module, wherein a middle opening of the photosensitive module corresponding to the inner frame is on the inner frame; and a plurality of actuating assemblies, located around the photosensitive module, electrically connected to the flexible assembly, and configured to drive the photosensitive module, wherein each actuating assembly comprises: a carrier board, on the inner frame; at least one first electrical pad, on the carrier board and electrically connected to the inner frame; and a coil, on the carrier board and electrically connected to one of the at least one first electrical pad; wherein the flexible assembly is configured to provide a freedom of motion for the photosensitive module.
2 . The camera module according to claim 1 , wherein the actuating assembly is a micro-electromechanical (MEMS) actuator.
3 . The camera module according to claim 1 , wherein the photosensitive module comprises: a reinforcement member, covering the middle opening of the inner frame and coupled to the inner frame; and a photosensitive element, located in the middle opening of the inner frame and fixed to the reinforcement member.
4 . The camera module according to claim 3 , wherein at least one of the plurality of actuating assemblies comprises: at least one second electrical pad, on the carrier board; and at least one guide hole, extending through the carrier board, wherein each guide hole is coupled between one of the at least one first electrical pad and one of the at least one second electrical pad; and the photosensitive element is connected to one of the at least one second electrical pad through wire bonding.
5 . The camera module according to claim 3 , wherein an optical axis of the photosensitive element extends through the middle opening of the inner frame.
6 . The camera module according to claim 5 , wherein at least one of the plurality of actuating assemblies comprises: at least one second electrical pad, on the carrier board; and at least one guide hole, extending through the carrier board, wherein each guide hole is coupled between one of the at least one first electrical pad and one of the at least one second electrical pad; and the photosensitive element is connected to one of the at least one second electrical pad through wire bonding.
7 . The camera module according to claim 6 , wherein the coil is electrically connected to one of the at least one second electrical pad.
8 . The camera module according to claim 1 , wherein the photosensitive module is welded to a first surface of the inner frame.
9 . The camera module according to claim 8 , wherein each first electrical pad is welded to the first surface of the inner frame.
10 . The camera module according to claim 8 , wherein at least one of the plurality of actuating assemblies comprises: at least one guide hole, extending through the carrier board, wherein one end of each guide hole is coupled to one of the at least one first electrical pad, and the coil is electrically connected to an other end of the guide hole.
11 . The camera module according to claim 8 , wherein the plurality of actuating assemblies are on a second surface of the inner frame, and at least one of the at least one first electrical pad is connected to the second surface of the inner frame through wire bonding.
12 . The camera module according to claim 1 , wherein each rib assembly comprises: a first rib portion, extending in a first direction and coupled to the outer frame; and a second rib portion, extending in a second direction and coupled between the first rib portion and the inner frame, wherein the first direction is perpendicular to the second direction.
13 . The camera module according to claim 1 , wherein the outer frame has a plurality of corner blocks protruding toward inside, and each corner block is located at a corner of the outer frame; and each rib assembly comprises: an outer frame rib, extending in a first direction and coupled between two adjacent corner blocks; at least one connection rib, extending in a second direction and coupled between the inner frame and the outer frame rib, wherein the first direction is perpendicular to the second direction; and a frame-shaped rib, wherein two opposite corners of the frame-shaped rib are respectively coupled to an adjacent corner block and a corner end of the inner frame.

Description

CROSS-REFERENCE TO RELATED APPLICATION This non-provisional application claims priority under 35 U.S.C. § 119(a) to Patent Application No. 202411565940.5 filed in China on Nov. 5, 2024, the entire contents of which are hereby incorporated by reference. BACKGROUND Technical Field The present disclosure relates to a camera module, and in particular, to a camera module capable of optical image compensation. Related Art A camera module of a mobile phone is mainly composed of a lens, a voice coil motor (VCM), an image sensor (such as a complementary metal-oxide-semiconductor (CMOS) image sensor, CIS), and a substrate (such as a printed circuit board (PCB) or a flexible printed circuit (FPC)). The VCM may drive the lens or the image sensor through a force generated by the coil when the coil is energized, thereby achieving auto focus compensation. Common VCMs currently existing in the market include lens-shift VCMs and sensor-shift VCMs. However, in the design of VCMs, VCM manufacturers usually first manufacture a coil and a coil holder separately, and then assemble them through micro mechanical processing, increasing assembly tolerances and complexity of the assembly process. Furthermore, in the design of sensor-shift VCMs, a substrate for arranging an image sensor has a flexible structure to provide displacement of the image sensor driven by a VCM. Therefore, a problem regarding reliability frequently occurs in a drop test. SUMMARY In view of the above problems, the present disclosure provides a camera module, to resolve existing problems of assembly tolerances, complex assembly processes, and/or low drop reliability. In some embodiments, a camera module includes a flexible assembly, a photosensitive module, and a plurality of actuating assemblies. The flexible assembly includes an inner frame, an outer frame, and a plurality of sets of rib assemblies. Each rib assembly is coupled between the inner frame and the outer frame. A middle opening of the photosensitive module corresponding to the inner frame is on the inner frame. The plurality of actuating assemblies are located around the photosensitive module, electrically connected to the flexible assembly, and configured to drive the photosensitive module. Each actuating assembly includes a carrier board, at least one first electrical pad, and a coil. The carrier board is on the inner frame. The at least one first electrical pad is on the carrier board and is electrically connected to the inner frame. The coil is on the carrier board and is electrically connected to one of the at least one first electrical pad. The flexible assembly configured to provide a freedom of motion for the photosensitive module. In some embodiments, the actuating assembly is a micro-electromechanical (MEMS) actuator. In some embodiments, the photosensitive module includes a reinforcement member and a photosensitive element. The reinforcement member covers the middle opening of the inner frame and is coupled to the inner frame. The photosensitive element is located in the middle opening of the inner frame and is fixed to the reinforcement member. In some embodiments, an optical axis of the photosensitive element extends through the middle opening of the inner frame. In some embodiments, at least one of the plurality of actuating assemblies includes at least one second electrical pad and at least one guide hole. The at least one second electrical pad is on the carrier board. The at least one guide hole extends through the carrier board. Each guide hole is coupled between one of the at least one first electrical pad and one of the at least one second electrical pad. The photosensitive element is connected to one of the at least one second electrical pad through wire bonding. In some embodiments, the coil is electrically connected to one of the at least one second electrical pad. In some embodiments, the photosensitive module is soldered to a first surface of the inner frame. In some embodiments, the photosensitive module is soldered to the first surface of the inner frame, and each first electrical pad is soldered to the first surface of the inner frame. In some embodiments, at least one of the plurality of actuating assemblies includes at least one guide hole extending through the carrier board. One end of each guide hole is coupled to one of the at least one first electrical pad, and the coil is electrically connected to an other end of the guide hole. In some embodiments, the photosensitive module is soldered to the first surface of the inner frame, the plurality of actuating assemblies are on a second surface of the inner frame, and at least one of the at least one first electrical pad is connected to the second surface of the inner frame through wire bonding. In some embodiments, each rib assembly includes a first rib portion and a second rib portion. The first rib portion extends in a first direction and is coupled to the outer frame. The second rib portion extends in a second directi